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本文以三层电剖面模型计算出由于电剖面参数变化而引起的视电阻率变化,进而说明因地下水位变化所引起的视电阻率变化是可能估计的。根据这个结果能够确定出由于地下水干扰所引起的视电阻率异常幅度,这将有利于视电阻率变化与地震关系的定性、定量分析研究。实际工作表明,视电阻率变化很复杂,许多因素都会使视电阻率发生变化,但水的影响很重要,因此,研究这个问题有重要意义。
In this paper, the change of apparent resistivity caused by the change of electric profile parameters is calculated by the three-layer electric profile model, which shows that the change of apparent resistivity caused by the variation of groundwater level is possibly estimated. Based on this result, the anomalous magnitude of apparent resistivity caused by groundwater disturbance can be determined, which is conducive to qualitative and quantitative analysis of the relationship between apparent resistivity and earthquake. Practical work shows that the apparent resistivity changes are complicated and many factors cause the apparent resistivity to change. However, the influence of water is very important. Therefore, it is of great significance to study this issue.